An ArcGis geoprocessing tool that calculates the least-cost path from a source to a destination.

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Work least Cost path for Road maintain certain road gradient

How may I be able to do a least cost path maintaining the required gradient and other standards like the turning radii for road on slopes? I mean to use ArcGIS desktop 10.3!
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1answer
39 views

Finding multiple least-cost-paths for network of several points using QGIS? [closed]

I have got a map of hundreds of habitat patches dotted over a landscape, 60 of which (in a circle) I will be surveying for butterflies. The backing layer of the map contains data about how difficult ...
3
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1answer
32 views

Performing least cost path analysis on QGIS using permeability scores for 60 points in network?

I have a map that is made up of polygons that apparently cover the whole area without leaving gaps, each representing a field, a wood, a road, a house etc. Each polygon has a score in the attributes ...
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0answers
29 views

Problems with Path Distance tool in ArcGIS [closed]

for the first time I run the Path Distance tool in ArcGIS but I guess something went wrong, and the process went into a loop. I needed to calculate the path distance to rivers. I use a rivers shpfile ...
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2answers
98 views

Tobler's hiking function in PathDistance ArcGIS 10.3.1

I am working on least cost paths for an archaeological project and I am trying to implement Tobler’s hiking function on ArcGIS 10.3.1 for Desktop. I am using SRTM 1 arc second global downloaded on ...
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1answer
78 views

Cost Distance Map in QGIS

My question is very similar to Cost Distance Analyst In QGIS? However, I'm looking for a means by which I can create a raster displaying the cumulative cost of each pixel to a specified destination ...
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0answers
15 views

GRASS 7.0.3 - Script to automate multiple simulations?

I am working in GRASS 7.0.3 and want to conduct a complex analysis of Least-Cost Paths of the many-to-many type. Specifically, I do have my elevation raster (ASTER DEM) and point data of 300 random ...
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1answer
32 views

GIS Least Cost Spanning Tree in R

Is there an R package/function that computes a least cost spanning tree given a shapefile or vector containing the latitude/longitude of each point and a raster file that contains the cost of ...
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1answer
30 views

Recreating maps from “The $50 American Road Trip”? [closed]

I would like to recreate for cities in my country the maps represented here, using ArcMap. On the same site I found the calculations, but I don't really know how to recreate those tables. After ...
2
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1answer
130 views

How to use the Grass modules v.net.xxxx from within QGIS

I'm trying to create a an area that can be reached within a certain amount of time/distance from a single (or multiple) points. To do this i'm using the GRASS tool v.net.iso (via the GUI). I've ...
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1answer
36 views

ArcGIS backlink raster incorrect

I created a small (4x4) cost raster with a 10m cell resolution, and used the ArcGIS Cost Distance tool to calculate the Output Distance raster and the Output backlink raster, assuming a single source ...
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1answer
58 views

QGIS: Grass Tools: Least cost path using r.drain generating flawed results

I am trying to use a combination of r.walk and r.drain in the QGIS grass plugin to model the most efficient path between two points, where cost is accumulated principally by movement over deeper ...
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1answer
37 views

Cost Path based on Lowest Maximum Elevation Encountered

I am trying to locate the lowest elevation point at which a river will overtop its banks, and spill into lower-lying terrain behind them. I'm working in ArcMap version 10.2, and using a ...
2
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1answer
39 views

Find distances between points through a raster

I have a set of 79 points located overlaid on a raster that defines distance through coastal waters: each cell equals 100 metres, with NoData for coast and islands. I can use this raster to create ...
2
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1answer
41 views

Opposite of least cost path?

I've established how to run a Least Cost Path analysis in ArcGIS, but I'm wondering if you can run an analysis to find the hardest path between two points?
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1answer
154 views

How to get r.drain to run in QGIS/GRASS?

I use the GRASS GIS extensions for QGIS (QGIS version 2.12.3 with GRASS 6.4) and I have a problem with the r.drain algorithm: I simply cannot make it work with a given starting point as a vector ...
2
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1answer
111 views

ArcGIS Cost Path Analysis. How to extract the area covered by the many possible shortest paths?

As you can see in the picture ArcGIS Cost Path Analysis produces different results based on chosen direction (blue path direction: start->stop, red path direction: stop->start). As Cost Path ...
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2answers
84 views

Least Cost Path Distance to nearest polygon

I have multiple polygons (destinations) and an elevation raster. For each raster cell in my study area, I need to calculate the distance to the nearest destination polygon. If I use the 'as crow ...
3
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2answers
281 views

Least cost path between various points QGIS

Is there an easy way to find the least cost path (LCP) between various points in an open source GIS? This question has actually already been asked here: How to find a least cost path through several ...
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41 views

ArcGIS raster-based districting for equal population districts: cost allocation?

My goal is to define 13 starting points as centers from which 13 continguous, non-overlapping districts will "spread out" across a raster (containing population data for each cell) until each district ...
2
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1answer
66 views

Alternative Least Cost Paths

I'm working on site accessibility. Having various locations, I can identify the LCP going from one to any other. So, by default, LCP calculation is giving me the first most least-cost path only. I can ...
3
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1answer
89 views

Changing way r.cost and r.drain modules work?

Look at the picture #1. This is my cost surface raster that has only 2 values. Area restricted for path to cross (red one) and area that is free to go (yellow one). As I need it and as I undestand how ...
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1answer
70 views

GRASS 7 Cost surface and elevation points development

I'm a new to GIS and I need some help. At the moment, I'm trying to develop an optimal path across an area by using GRASS 7 features. It is very similar to the task given here. The problem is that I ...
2
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1answer
124 views

What is the best method for route cost estimation? [closed]

What would be the best method for calculating a rough adhoc route cost i.e. a potential road (been some years since I have used Network Analysis in ArcGIS), alternatively would it be better using ...
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56 views

Historical Traffic Condition + Vehicle Path Advise Required

I'm currently working on a project which involves tracing the path(GPS coordinates) taken by a vehicle (1) and measuring the traffic conditions(is it jammed and whats the speed during the time the ...
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0answers
126 views

Least cost path analysis : a lot of sources and destinations

I'm working on a 15*10 km area, splatted in a 50*50 m cell grid. I want to compute the time needed to travel from a single starting point to each cell centroid, combining driving and walking time. I ...
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24 views

Capping the amount of a certain cost per route with Network Analyst

With the Network Analyst extension in ArcGIS 10.2, is there a way to set the maximum amount of a certain cost that a route must not exceed? For example, can I require routes to be below a certain ...
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1answer
296 views

Cost Surface algorithm in ArcGIS

based on this arcticle "Extensions to least-cost path algorithms for roadway planning (Chaoqing, Jay, dan Mandy 2002)" see link below: ...
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0answers
107 views

GRASS GIS r.walk issue

I have been playing around with GRASS GIS to do a simple cost analysis of getting from point A to point B. I have a DEM clipped to the study area, a raster containing the friction costs, as well as ...
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2answers
1k views

Cost Distance Analyst In QGIS?

Are there any tools, plugins or methods in QGIS which allows for an analysis of the best path between two points using least cost path method? As shown below ArcGIS has several distance tools.
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58 views

Euclidean Distance with Weighted Values

I am currently dealing with a dataset which consists of about 2700 points stochastically placed in a study area of about 650,000 sqKm. I am trying to create a distance raster for these points, which I ...
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0answers
153 views

How to find a least cost path through several points?

I want to do a least cost path analysis and the least cost path has to go through several different points instead of having just a start and end destination. Is this possible? I am using ArcGIS ...
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1answer
120 views

How to find out the length and friction costs of my least cost path?

I modeled different possibilities for transmission lines with the GIS tool "Cost Path". Now I would like to find out more information about my results. First of all: Where can I see the length of my ...
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1answer
267 views

Cost Distance interpretation in ArcGIS 10.2

I am using the Cost Distance tool in ArcMap 10.2 to find the how far it is to walk to the closest area of green space along the road network in a town. I have a input raster of the location of the ...
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1answer
85 views

How to create landscape resistance map using path level spatial randomisation in QGIS?

I need to create a landscape resistance map based on path level spatial randomisation, as I have read in some research papers. Are there tools for this? I need to randomly shift and rotate the the ...
0
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1answer
248 views

What exact format do I need to have for the inputs to make Path Distance work?

I am trying to run the Path Distance tool in ArcGis 10.1. Ideally I would like to utilize Tobler's hiking formula anisotropic approach to slope and a land cover cost surface to calculate the least ...
4
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1answer
138 views

Including rivers in least cost analysis in ArcGIS 10

I am relatively new to ArcGIS so please bear with me!! I am looking to find the least cost path between a number of points in a landscape (eastern Sicily) that avoids rivers (obviously a Roman cart ...
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127 views

Using the accCost() function in R: questions regarding the transition layer

I am trying to use the accCost() function from the gdistance package in R. I load my cost raster using the raster()function from the raster package. According to the documentation, I need first to ...
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2answers
383 views

GRASS tutorials, spec r.walk, r.cost

Recently got enamored with the idea of doing a time-based and an energy-based least cost path analysis. After doing some research, I see that GRASS is the best for executing time-based given the ...
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19 views

implement aspect in least cost path analysis to account for downhill and neutral ground movement [duplicate]

I am creating a least cost path model for large species that migrate over large distances across a rugged landscape (elk, deer, etc.) To calculate movement cost I am using a slope raster but I ...
2
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0answers
206 views

Best software for a least cost path analysis [closed]

Background: running a least cost path analysis across mountains in middle east for archaeology project. Ideally, pick several points across an arbitrary interval distance (e.g. 1 km apart) and same ...
3
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0answers
206 views

Cost Path: multiple pairs of sources and destinations

I have seen many questions related to this problem but very few answers. I am very new to scripting and using ModelBuilder, but I am trying to calculate the cost path for 200 polygons with a single ...
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0answers
64 views

CostPath gives error for specific points?

I am using the tool CostPath. As an input feature destination data I've entered several points (no specific value, just distributed geographically), and as the cost distance raster I've entered the ...
1
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1answer
291 views

How to create least-cost path between two polygons with GRASS?

I am completely a beginner in GRASS but I would like to use it to have the cumulative cost of moving between two polygons. More exactly, I would like to get the smallest cost from any point situated ...
0
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1answer
241 views

How to resolve ERROR 010271: Raster does not have an attribute table?

From my code which builds least-cost paths between several polygons by using the functions "CostDistance" and "CostPath" of ArcGIS , I obtain this error message: ExecuteError: ERROR 010271: Raster ...
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1k views

Cause of ExecuteError: ERROR 010067 from arcpy.sa.CostPath?

By using the code below that creates least-cost paths between several polygons, I obtain this error message: ExecuteError: ERROR 010067: Error in executing grid expression. Initalization failed ...
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2answers
7k views

What causes ValueError: I/O operation on closed file? [closed]

I obtain the following error message: ValueError: I/O operation on closed file Here is my code (It selects each polygon contained in the shapefile "selected_polygons.shp" and builds the least-cost ...
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1answer
5k views

What causes AttributeError: 'module' object has no attribute 'da'?

I have a shapefile "selected_polygons.shp" that contains 2000 polygons. I would like to select each polygon contained in the shapefile by using a search cursor in order to apply the function ...
0
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2answers
71 views

Handling 2s in cost path analysis output?

I am trying to compute shortest distance to stream from various point locations on the landscape. I am using the cost path tool in spatial analyst to do this . I am using a DEM as a cost distance ...
3
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1answer
524 views

Distance from rivers, taking into account terrain elevation

I am interested in building a raster of the distance from rivers in a territory under study. I have digitized the course of the rivers in ArcGis 10.1. I have used the 'Euclidean Distance' tool to ...